angular.module('Controllers')
.directive('schrollBottom', function () {		// custom directive for scrolling bottom on new message load
  return {
    scope: {
      schrollBottom: "="
    },
    link: function (scope, element) {
      scope.$watchCollection('schrollBottom', function (newValue) {
        if (newValue)
        {
          $(element).scrollTop($(element)[0].scrollHeight);
        }
      });
    }
  }
})
.directive('ngEnter', function () {			// custom directive for sending message on enter click
    return function (scope, element, attrs) {
        element.bind("keydown keypress", function (event) {
            if(event.which === 13) {
                scope.$apply(function (){
                    scope.$eval(attrs.ngEnter);
                });
                event.preventDefault();
            }
        });
    };
})
.controller('chatRoomCtrl', function ($scope, $rootScope, $socket, $location, $http, $timeout, sendImageService){		// Chat Page Controller
	// Varialbles Initialization.
	$scope.isMsgBoxEmpty = false;
	$scope.isFileSelected = false;
	$scope.isMsg = false;
	$scope.setFocus = true;
	$scope.chatMsg = "";
	$scope.users = [];
	$scope.messeges = [];

	// redirection if user is not logged in.
	if(!$rootScope.loggedIn){
		//random generator a user for visitor
		$location.path('/v1/');
//		$scope.userAvatar = "Avatar1.jpg";
//		$scope.isErrorReq = false;
//		$scope.isErrorNick = false;
//		$scope.username = "游客001";
//		$socket.emit('new user',{username : $scope.username, userAvatar : $scope.userAvatar},function(data){
//			if(data.success == true){
//				$rootScope.username = $scope.username;
//				$rootScope.userAvatar = $scope.userAvatar;
//				$rootScope.loggedIn = true;
//			}
//		});
	}
// ================================== Online Members List ===============================
	$socket.emit('get-online-members',function(data){
		console.log("calling get online finish , already return");
	});
	$socket.on("online-members", function(data){
		$scope.users = data;
	});

// ================================== Common Functions ==================================    
	// device/desktop detection
	var isMobile = false;
    if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent) 
    || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.substr(0,4)))
		isMobile = true;        

        if(isMobile){
        	var height = $( window ).height() * 0.7;
				$scope.setFocus = false;
				setTimeout(function(){ $('.direct-chat-messages').height(height); }, 1000);
        	$(window).on("resize", function () {
				var height = $( window ).height() * 0.7;
				$scope.setFocus = false;
				setTimeout(function(){ $('.direct-chat-messages').height(height); }, 1000);    
			});
        }else{
        	var height = $( document ).height() * 0.8;
			$('.direct-chat-messages').height(height);
        }
    // message time formatting into string    
	function formatAMPM(date) {
		var hours = date.getHours();
		var minutes = date.getMinutes();
		var ampm = hours >= 12 ? 'pm' : 'am';
		hours = hours % 12;
		hours = hours ? hours : 12; // the hour '0' should be '12'
		minutes = minutes < 10 ? '0'+minutes : minutes;
		var strTime = hours + ':' + minutes + ' ' + ampm;
		return strTime;
	}
	// toggle online member list mobile
 	$scope.custom = true;
    $scope.toggleCustom = function() {
        $scope.custom = $scope.custom === false ? true: false;	
        if(!$scope.custom){
        	if(!angular.element(document.querySelector("#slidememberlist")).hasClass("slideout_inner_trans")){
        		angular.element(document.querySelector("#slidememberlist")).addClass("slideout_inner_trans");
        	}
        }else{
        	if (angular.element(document.querySelector("#slidememberlist")).hasClass("slideout_inner_trans")) {
        		angular.element(document.querySelector("#slidememberlist")).removeClass("slideout_inner_trans");        		
        	}
        }        
    };   

// ====================================== Messege Sending Code ============================
	// sending text message function
	$scope.sendMsg = function(){
		if ($scope.chatMsg) {
			$scope.isFileSelected = false;
			$scope.isMsg = true;
			var dateString = formatAMPM(new Date());
			$socket.emit("send-message",{ username : $rootScope.username, userAvatar : $rootScope.userAvatar, msg : $scope.chatMsg, hasMsg : $scope.isMsg , hasFile : $scope.isFileSelected , msgTime : dateString }, function(data){
				//delivery report code goes here
				if (data.success == true) {
					$scope.chatMsg = "";
					$scope.setFocus = true;				
				}
			});
		}else{
			$scope.isMsgBoxEmpty = true;
		}		
	}

	// recieving new text message
	$socket.on("new message", function(data){
		if(data.username == $rootScope.username){
			data.ownMsg = true;	
		}else{
			data.ownMsg = false;
		}
		$scope.messeges.push(data);
	});
})
